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Physics 121, Calculus based General Physics, Fall 2019, Dr. Rich Janow, New Jersey Institute of Technology (NJIT)
Typology: Exercises
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Fall 2012
PROBLEM 121P02- 1P: What must be the distance between point
C and
between them to have a magnitude of 5.70 N?
PROBLEM 121P02 - 5P: In the figure , what are the (a) horizontal and (b) verticalcomponents of the net
electrostatic force
on the charged particle in the lower left corner of
PROBLEM 121P02 - 9P: Two
charge^ is placed so that the entire system is in equilibrium. (a) Find the location, magnitude, and sign of the third charge. (b) Show that theequilibrium is unstable.
PROBLEM 121P02 - 13P*: A certain
are then separated by a certain distance. What must
electrostatic repulsion between the two charges?
PROBLEM 121P02 - 15P: In the figure, two tiny conducting balls of identical mass
m^ and identical^ charge
q^ hang from nonconducting threads of length
L. Assume that^ θθθθ^ is so small that tan
θθθθ^ can be replaced by its
approximate equal, sin
θθθθ. (a) Show that, for equilibrium, where^ x^ is the separation between the balls. (b) If
L^ = 120 cm,^ m^ = 10 g, and
x^ = 5.0 cm, what is^ q?
